64241121 has 16 divisors (see below), whose sum is σ = 98009984. Its totient is φ = 36664704.

The previous prime is 64241117. The next prime is 64241123. The reversal of 64241121 is 12114246.

It is a happy number.

It is not a de Polignac number, because 64241121 - 2² = 64241117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (64241123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24741 + ... + 27213.

It is an arithmetic number, because the mean of its divisors is an integer number (6125624).

Almost surely, 2^64241121 is an apocalyptic number.

It is an amenable number.

64241121 is a deficient number, since it is larger than the sum of its proper divisors (33768863).

64241121 is a wasteful number, since it uses less digits than its factorization.

64241121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720.

The product of its digits is 384, while the sum is 21.

The square root of 64241121 is about 8015.0558950016. The cubic root of 64241121 is about 400.5017058816.

64241121 divided by its sum of digits (21) gives a triangular number (3059101 = T₂₄₇₃).

Adding to 64241121 its reverse (12114246), we get a palindrome (76355367).

The spelling of 64241121 in words is "sixty-four million, two hundred forty-one thousand, one hundred twenty-one".